902230131602 has 6 divisors (see below), whose sum is σ = 1353347212359. Its totient is φ = 451114394150.

The previous prime is 902230131559. The next prime is 902230131637. The reversal of 902230131602 is 206131032209.

It can be written as a sum of positive squares in only one way, i.e., 451115065801 + 451115065801 = 671651^2 + 671651^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=671651.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1007477 + ... + 1679127.

Almost surely, 2^902230131602 is an apocalyptic number.

902230131602 is a deficient number, since it is larger than the sum of its proper divisors (451117080757).

902230131602 is an frugal number, since it uses more digits than its factorization.

902230131602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1343304 (or 671653 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 29.

The spelling of 902230131602 in words is "nine hundred two billion, two hundred thirty million, one hundred thirty-one thousand, six hundred two".